<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
	</head>
	<body>
		<audio id="demo" src="src/bg.mp3"></audio>
		<div>
		  <button onclick="document.getElementById('demo').play()">播放</button>
		  <button onclick="document.getElementById('demo').pause()">暂停/继续播放</button>
		  <button onclick="document.getElementById('demo').volume+=0.1">放大音量</button>
		  <button onclick="document.getElementById('demo').volume-=0.1">缩小音量</button>
		</div>
	</body>
</html>
